1 files changed, 19 insertions, 0 deletions
diff --git a/sys/fio/frtnfd.x b/sys/fio/frtnfd.x
new file mode 100644
index 00000000..cf98aa55
--- /dev/null
+++ b/sys/fio/frtnfd.x
@@ -0,0 +1,19 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<config.h>
+include	<fio.h>
+
+# FRTNFD -- Return file descriptor and buffers.
+
+procedure frtnfd (fd)
+
+int	fd
+include	<fio.com>
+
+begin
+	if (fiodes[fd] != NULL) {
+	    call frmbfs (fd)
+	    call mfree (fiodes[fd], TY_STRUCT)
+	    fiodes[fd] = NULL
+	}
+end